Status: IN
DAX IAM actions use the `dax:` prefix (e.g., `dax:GetItem`, `dax:PutItem`) not the `dynamodb:` prefix, and the resource ARN format is `arn:aws:dax:<region>:<account-id>:cache/<cluster-name>`.
Source: entries/2026/03/11/amazondynamodb-latest-developerguide-DAXaccess-controlhtml.md